From what I've seen all Erastil has proposed is that BOTH parents settle down.
That perhaps adventurers should be from necessity rather than a full business.
He's not espousing misogyny, he's espousing taking responsibility for your offspring once they happen.
The human body degrades and its hardwired into the brain to want to pass on our genetics in some form.
Adventuring is not the every-person's job, it's an incredibly specialised job that few are capable of carrying out.
Erastil knows that eventually adventurers get old, slip up and die.
Better to know when to retire, settle down, have a family, make sure that family's well looked after.
Maybe this isn't about contemporary gender politics outside of the setting, but about making sure that a child doesn't need to come home one day to find out both of their parents were killed during a dragon hunt, or that a bloodline isn't cut short because someone put their own glory before common sense.
Erastil's old, very old.
He's seen gods go out to fight things out of necessity and come back changed if they came back at all.
There's so much you can do with this angle that you won't touch because gods forbid someone have experiences that might reinforce their view.
How many comrades has Erastil seen die? How many times has he seen young adventurers run away from home to pursue the exact thing that cost so many their lives?
How many parents pray to him so that their child might come back from their quest alive?
How many times can Erastil not fulfil that prayer?
Look past your own personal baggage.
See the stories we could tell.
Don't write a safe character.
Write a compelling one.